In the original set they have been used rotated in various ways in an effort to make the repetition less obvious, but when my BrickLink order arrived I tested out the printed pieces and quickly decided that whilst they did work this way, it did look a bit too repetitive for my liking.
It was at about this time that I had printed up some custom stickers for my Former Bendigo Fire Station MOC and was pretty happy with the combination of a glossy label stock and inkjet printing so I thought I might have a go at designing some of my own screen designs to tie in with the colour scheme and visual style of the 2 x 2 piece and the 1 x 2 tiles and slopes.
You can see my six custom screen designs above, I based them on the designs of the five original pieces, the 2 x 2 Batcomputer screen tile as well as other existing LEGO pieces I found in my search with just a hint of Star Trek thrown in for good measure. Working in Adobe Illustrator I created each screen as a vector image so the elements would appear crisp no matter the size they end up being printed. (Incidentally if you would like to print out a set of them yourself, you can get your hands on my artwork here.)
If you are interested in purchasing my computer screen designs as printed sticker sheets, you can do so here.
I ended up being so happy with how the designs turned out that I got them custom printed on 2 x 2 black tiles by Edd at BrickSanity in the UK. You can see an image of a few of them in situ in my MOC below and how they work in together with the existing LEGO pieces.